Decreased mineralization of the mandible and maxilla allows extensive lateral movement of the beak

Hen showing sternal recumbancy due to osteomalacia

Severe nephritis characterised by pallor and urate deposition may be associated with nephrogenic strains of infectious bronchitis, infectious bursal disease or water deprivation

Torticollis may be due to infection of the inner ear by E. coli or Pasteurella multocida. It has also been observed in flocks suffering from velogenic Newcastle disease

Enlargement of wattle due to Pasteurella multocida infection

Wing of 14-day old broiler showing edema, subcutaneous hemorrhage and transudate due to chick anemia virus

Mucosa of intestine showing lesions characteristic of necrotic enteritis